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ADS4222: processor reference design

HS FAE Germany
Mastermind 30965 points
Part Number: ADS4222
Other Parts Discussed in Thread: ADS4122,

Hello,
customer needs to sample 65MSPS, 14bit and is looking for interfacing to a processor. Do we have any Sitara reference design?

Regards, Holger

  • +1
    TI__Genius 13455 points

    Hi Holger,

    This TI Design based on the ADS4122 (not ADS4222) and AM335x is the closest I am aware of, but we in the range of 20MSPS: https://www.ti.com/tool/TIDA-00942

    The report does not go into the overall PRU loading, or if cycles are available to push the sample rate higher.  I believe not having LVDS DDR input will be the limiting factor here.

    I am checking with someone on the team that is familiar with this TI Design, and can answer if we have cycles available for higher sample rate.

    Regards,
    Mike

  • 0 in reply to Michael Erdahl
    TI__Mastermind 30965 points

    Hello Mike,

    that is what I'm looking for. It would be interesting to know if the 20MSPS are the limit for the CMOS parallel interface or if we can go higher (up to 65MSPS). Or is LVDS needed. May be there is a kind of LVDS gateway/bridge which can be used with our processors.

    Regards, Holger